P0010 on Mercedes-Benz: How to Diagnose & Fix
Intake Camshaft Position Actuator Circuit (Bank 1)
4 Mercedes-Benz models · 4 documented issues · $120-$2,500 repair
P0010 on Mercedes-Benz by model: symptoms, diagnosis and fix
The camshaft adjuster solenoids (VANOS equivalent) stick or fail due to oil varnish buildup, causing rough idle, poor throttle response, and check engine lights. Particularly common with extended oil change intervals.
Common Symptoms
- Rough idle after warm-up
- Check engine light with cam timing codes
How to Fix
Replace the camshaft adjuster solenoid(s). Clean the oil passages feeding the solenoids. Use Mercedes-approved 229.51 spec oil and change every 7,500 miles to prevent recurrence.
Owner tips & cautions
- TipShorten oil change intervals to 7,500 miles instead of the Mercedes-recommended 10,000-13,000 miles. Dirty oil is the primary cause of solenoid failure.
The M271 four-cylinder's camshaft adjuster magnets (variable valve timing solenoids) commonly fail or become oil-fouled on R171 SLK200 Kompressor and R172 SLK250 models. A well-documented M271 defect is engine oil wicking up the solenoid connector into the wiring harness toward the ECU and O2 sensor. This is distinct from timing-chain/gear wear: the solenoid itself sticks or shorts, upsetting cam timing and triggering camshaft-position/correlation codes.
Common Symptoms
- Check-engine light for camshaft position/correlation
- Rough idle or hesitation
- Oil in the solenoid connector / harness
- Occasional hard start or reduced power
- Fault code moves when magnets are swapped
How to Fix
Replace the camshaft adjuster magnet solenoids and fit Mercedes' updated oil-stop connector/harness (Oelstoppkabel, e.g. A2711502733) that resists oil migration; clean oil from the connector and harness. Because the adjuster still tends to seep, periodic replacement (roughly every 30,000-40,000 miles) is common, and more frequent oil changes slow sludge buildup. A quick diagnostic is swapping intake/exhaust magnets to see if the fault code follows the part.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Mercedes M271 Kompressor camshaft-adjuster magnet A2710510177OEMMercedes-Benz A2710510177
M271 Kompressor external adjuster-magnet branch after electrical/actuation testing identifies the failed magnet Fitment/availability: The inspected direct U.S. page identifies genuine 2710510177 and showed availability, price and purchas…
- Genuine Mercedes M271 oil-stop adapter harness A2711502733 / current -65OEMMercedes-Benz A2711502733 / A271150273365
Confirm engine/VIN and connector;
- Genuine Mercedes M271 EVO camshaft-control solenoid A2711560090OEMMercedes-Benz A2711560090
R172 SLK250 M271 EVO control-solenoid branch after the specific solenoid is electrically and functionally proven faulty Fitment/availability: The inspected direct U.S. page identifies genuine 2711560090, explicitly labels SLK250 fitment,…
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Sources for this issue (3)
On the M274/M264 2.0L turbo engines used in the GLC, the intake camshaft adjuster relies on an internal locking pin that wears over time. Without oil pressure at cold start, the adjuster fails to lock in its default position, producing a distinct metallic rattle for 2-4 seconds on a cold start. Oil leaking around the camshaft adjuster solenoid can also seep into the wiring harness and trigger timing faults. Left unrepaired it risks valve-timing errors and further engine wear.
Common Symptoms
- Loud metallic rattle for 2-4 seconds on cold start
- Check engine light
- Rough running until warm
How to Fix
Replace the camshaft adjuster(s) and/or the camshaft magnet/solenoid actuators; use of fresh, correct-spec oil and addressing any oil-pressure deficiency is part of the fix. Verify no oil contamination has reached the solenoid connectors.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Mercedes-Benz M274/M264 intake and exhaust camshaft sprocket-adjuster kit 2600502100KTOEMMercedes-Benz 2600502100KT
Confirmed internal intake/exhaust camshaft adjuster failure branch Fitment/availability: The inspected direct U.S. Confirm VIN,
- OE-supplier camshaft-adjuster magnet and wiring-protection kit 2761560790KT2OEMFCP 2761560790KT2
Confirmed external adjuster-magnet leakage/electrical failure or oil-wicking prevention branch Fitment/availability: The inspected direct U.S.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Sources for this issue (2)
The W166 GLE 350 and GLE 400 (2016-2018, M276 3.0L/3.5L V6) share the well-known M276 camshaft-adjuster problem. The variable-valve-timing camshaft adjusters and their magnets/solenoids wear, allowing the cams to fall out of time. Symptoms include a 2-3 second rattle on cold start, rough running, and check-engine codes such as P0010-style adjuster faults; owners report codes like P002177 with cams found advanced/out of time. Left unaddressed, a worn adjuster can cause poor timing control and driveability problems.
Common Symptoms
- 2-3 second rattle on cold start
- rough idle
- check engine light
- rough running / hesitation
- cam timing fault codes
How to Fix
Read the cam-correlation/adjuster DTCs and inspect the intake and exhaust camshaft adjusters and adjuster magnets. Replace worn camshaft adjusters (often with an updated timing chain kit and tensioner) and the adjuster solenoids on the affected bank, then re-verify cam timing. Using correct-spec oil and timely oil changes helps prevent adjuster sludging.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- FCP/Febi M276 bank-1 intake camshaft-adjuster repair kit 176728OEMFCP 176728
Mechanically confirmed bank-1 intake adjuster failure on the cataloged 2016-2018 GLE350 M276.955 branch Fitment/availability: The inspected direct U.S.
- OE-supplier camshaft-adjuster magnet/solenoid 2761560790OEMOE Supplier 2761560790
Electrically or leak-confirmed external adjuster magnet on the cataloged GLE350 branch Fitment/availability: The inspected direct U.S.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Sources for this issue (2)
P0010 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0010 mean on a Mercedes-Benz?
P0010 stands for "Intake Camshaft Position Actuator Circuit (Bank 1)." This code points to an electrical problem in the intake camshaft position actuator (variable valve timing) circuit on Bank 1. The computer controls an oil-fed solenoid to advance or retard the intake camshaft for better performance and efficiency, and it has detected the solenoid circuit is open, shorted, or out of range. This is usually an electrical or solenoid fault rather than a mechanical timing problem, though oil-related issues can play a role. You may notice rough running, reduced power, or lower fuel economy. On Mercedes-Benz it is documented across 4 models: C-Class, SLK/SLC, GLC, GLE.
What are the most common causes of P0010?
The most common causes of P0010 are: Faulty intake camshaft (VVT) oil control solenoid, Damaged, corroded, or loose wiring/connector at the solenoid, Open or short in the actuator circuit, Low or dirty engine oil restricting the solenoid, Clogged solenoid screen or oil passage, Poor electrical ground, Failed PCM/ECM (less common). The specific cause varies by vehicle.
How much does it cost to fix P0010 on a Mercedes-Benz?
Published repair estimates on Mercedes-Benz range from $120 to $2,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0010 on a different make?
View P0010 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.